I believe the working title for Numb was "Figure 09" since we have all the known tracks (15) on the meteorĐ° sessions songboard except Numb; and Figure 09 and Plaster II at the same time, which makes no sense, and since we know the working title for the original Figure 09 is Plaster II, the working title on the board "Figure 09" is simply redundant. I don't believe there could have been two versions of the same song at that stage (which is, as I understand it, tracking, when everything is ready for recording). Later, when the name "Numb" was coined, its working title was transferred to another song as the final one.